ScalaTest 스타일

ScalaTest란 무엇인가요?

의존성 추가하기

libraryDependencies += "org.scalatest" %% "scalatest" % "3.2.18" % Test

왜 여러 스타일을 사용하나요?

AnyFunSuite

import org.scalatest.funsuite.AnyFunSuite

class MathSuite extends AnyFunSuite {
  test("addition works") {
    assert(1 + 1 == 2)
  }

  test("multiplication works") {
    assert(2 * 3 == 6)
  }
}

AnyFlatSpec

import org.scalatest.flatspec.AnyFlatSpec

class CalculatorSpec extends AnyFlatSpec {
  "A Calculator" should "add two numbers" in {
    assert(2 + 3 == 5)
  }

  it should "subtract two numbers" in {
    assert(5 - 2 == 3)
  }
}

should와 must

import org.scalatest.flatspec.AnyFlatSpec

class ParserSpec extends AnyFlatSpec {
  "A Parser" must "handle empty input" in {
    assert("".isEmpty)
  }
}

it과 they

import org.scalatest.flatspec.AnyFlatSpec

class ListSpec extends AnyFlatSpec {
  "A List" should "report its size" in {
    assert(List(1, 2, 3).size == 3)
  }
  it should "reverse correctly" in {
    assert(List(1, 2).reverse == List(2, 1))
  }
}

AnyFunSpec

import org.scalatest.funspec.AnyFunSpec

class SetSpec extends AnyFunSpec {
  describe("A Set") {
    describe("when empty") {
      it("has size 0") {
        assert(Set.empty[Int].size == 0)
      }
    }
  }
}

보류 중인 테스트와 무시된 테스트

import org.scalatest.funsuite.AnyFunSuite

class WipSuite extends AnyFunSuite {
  test("feature not done") {
    pending
  }
  ignore("flaky test") {
    assert(false)
  }
}

스타일 선택하기

테스트 실행하기

sbt test
sbt "testOnly *CalculatorSpec"

빠른 확인

복습